Although what's the difference with any other electronic devices these days, like desktop computers & laptops etc. After 2 years, they are almost out of date, and you can buy something nearly twice as good now, and for half the price!
There is a distinct difference between being "out of date" and "inoperable". I still use computers regularly which are over 15 years old and they do the task that is required of them and unlike a TV, I can choose from a long list of operating systems and software which I can install on them, without any reliance on third-parties to keep developing or updating them.
Like I said earlier, if it does what you want it to do and it was the right price, then it was a good purchase.
In my opinion, televisions/monitors have one job to do and that is to accept a video input and display it at an acceptable quality. I don't even care about built-in speakers. It's like a fridge or a dishwasher, their job is to keep food cold and clean dishes respectively. There is absolutely no reason why either of them should have cameras or microphones, have the ability to run "apps" and be connected to the internet.
IoT isn't new, but it is stupid. Anyone remember the original
Chumby? Released in 2008, it was an internet connected alarm clock. It did some other things like download emails, read the news, weather etc... all until the service was canned in 2012 (it has since been relaunched in some limited capacity and some people did develop alternate firmware for it), but at the end of the day, it was an alarm clock.
I also find it quite entertaining that many people who buy these kinds of things are some of the most vocal opponents against Governments listening in and collecting data on people, yet they voluntarily pay good money to put listening devices and cameras in their own homes to be potentially exploited by anyone on the internet.